The environment: wo- and da-compounds

Da-compounds are used to replace and refer back to inanimate (non-living) nouns which have already been mentioned. Use wo-compounds to ask questions with prepositions. Place the prefix wo- + preposition at the start of the question. For animate things (people and animals), use an object pronoun instead of a da-compound to replace the noun. For ‘who’ questions with prepositions relating to animate nouns, use a form of ‘wer’, not a wo-compound. Use dar- and wor- for da- and wo-compounds with prepositions starting with a vowel.